Zilog Z16F2810 - Manual (Page 59)

UM018809-0611 Interrupts
ZNEO
®
CPU Core
User Manual
43
Example. Figure 11 displays an example of addresses used during an interrupt operation.
In this example, the interrupt vector quad address is 0000_0014H . The 32-bit interrupt
vector address contained by that quad ( 0023_4567H ) is loaded into the Program Counter.
The execution of the interrupt service routine begins at 0023_4567H .
Figure 10. Effects of an Interrupt on the Stack
Top of Stack Stack Pointer
FLAGS[7:0]
PC[15:8]
PC[7:0]
Stack Pointer
Stack Pointer and Stack
Before an Interrupt Stack Pointer and Stack
After an Interrupt
PC[23:16]
PC[31:24]
00H
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